When I open the door at work, there is a crack in the tempered glass, do I need to pay for it?

Under normal circumstances, there will be no cracks on the tempered glass, either it will be broken directly, or it will be scratches on the surface. If it is indeed a crack, then it is definitely risky. Tempered glass reinforced glass is a type of safety glass.

Tempered glass is actually a kind of prestressed glass, in order to improve the strength of the glass, chemical or physical methods are usually used to form compressive stress on the surface of the glass, and the glass first counteracts the surface stress when it bears external force, thereby improving the bearing capacity and enhancing the wind pressure resistance, cold and heat resistance, impact and so on. Note the difference with FRP. Tempered glass is obtained by cutting ordinary annealed glass to the required size, then heating to a close softening point, and then carrying out rapid and uniform cooling.

After tempering, the surface of the glass forms uniform compressive stress, and the internal tensile stress is formed, so that the performance of the glass can be greatly improved, the tensile strength is more than 3 times that of the latter, and the impact resistance is more than 5 times that of the latter. It is also this characteristic that the stress characteristic has become an important symbol to distinguish between true and false tempered glass, that is, the tempered glass can see color stripes on the edge of the glass through the polarizer, and the black and white spots can be seen on the surface of the glass. Polarizers can be found in camera lenses or glasses, so it is easier to observe by adjusting the light source when observing.

Each piece of tempered glass has a 3C certification mark on it.

It depends on what happens.

Summary. Hello, I'm glad to answer for you: it won't break. The glass doors are tempered, with a certain clearance and floor spring positioning, smooth buffering. If the glass door is shattered, it will only shatter if it is slammed.

Hello, I'm glad to answer for you: it won't break. The glass doors are tempered, which refers to the round ridge, and there is a certain permeable gap and the ground spring positioning is stable and buffered. When the glass door cavity is shattered, it will only shatter if it is slammed.

Expansion: The physically toughened (similar to metal quenching) glass surface has a very high compressive stress uniformly throughout the surface, resulting in a high strength of the glass rental shirt. This stress state is actually an unstable state, when one point is broken, its uniform equilibrium state is broken, and the stress in other parts will be automatically released, and the result is total crushing.

If you close it hard, you may break the balance point and it will break.

Tempered glass will break by itself, which cannot be ruled out as the reason for the large contrast in temperature. This is because the temperature gradient along the thickness of the glass is uneven and asymmetrical when the glass is heated or cooled. The tempered products have a tendency to self-detonate, and some produce "wind explosion" when they are cooled.

If the tensile stress zone is offset to a certain side of the product or to the surface, the tempered glass will form a self-explosion (generally the tempered glass will be broken by itself, which is called self-explosion).

There are many reasons for the self-explosion of tempered glass, which may be the influence of glass quality defects or the degree of tempering. Experiments show that when the tempering degree is increased to 1 cm, the number of self-explosion reaches 20% and 25%. It can be seen that the greater the stress, the higher the degree of toughening, and the greater the amount of self-explosion.

In addition, the surface of the glass has defects such as scratches, explosions, and deep explosion edges due to improper processing or operation, which can easily cause stress concentration or lead to self-explosion of tempered glass.

Hello! There is a crack in your tempered glass door, which looks like it has exploded, but if you touch it with your hands, it is not on the surface of the glass door, but in the deep layers of the glass.

1.Untempered glass can have long cracks due to impact, and tempered glass will never crack. Tempered glass is either not broken, or it will be broken.

Once the tempered glass is impacted by a violent point, even if it is a large piece of glass, it is crushed to the bone, and the broken glass is round, which does not hurt people.

2.Your door glass has strip scars, which are caused by the tempering temperature problem. The problem with this glass is the tempering technology, which is unqualified and unsafe, and should be returned.

The glass is heated to a lower than the softening temperature at a certain heating rate in the heating furnace, and then the glass is quickly sent to the cooling device, quenched with a low-temperature high-speed air flow, the outer layer of the glass is first contracted and hardened, due to the small thermal conductivity of the glass, the interior is still in a high-temperature state at this time, and when the inside of the glass also begins to harden, the hardened outer layer will prevent the contraction of the inner layer, so that the outer layer that hardens first produces compressive stress, and the inner layer that hardens after produces strong stress, because there is compressive stress in the glass surface layer, when the external force is done on the surface, First of all, this part of the compressive stress must be counteracted, which will greatly improve the mechanical strength of the glass, and the glass products that have undergone such physical treatment are tempered glass.

However, if the edge is collided, or if there is a scratch on the side, it will explode, and the glass door is mainly caused by collision.